Several foreign players in the NPB went the other way to the MLB in the last three years:

Cedrick Bowers played for Yokohama from 2004-2005 and debuted in MLB in 2008 with the Rockies.Esmailin Caridad played in 2 games for the Hiroshima Carp in 2007 and debuted in MLB in 2009 with the Cubs.Likewise, Victor Marte played in 1 game for the Hiroshima Carp in 2008 and debuted in MLB in 2009 with the Royals.

This is a site about Pro Yakyu (Japanese Baseball),
not about who the next player to go over to MLB is.
It's a community of Pro Yakyu fans who have
come together
to share their knowledge and opinions with the world.
It's a place to follow teams and individuals playing
baseball in Japan (and Asia), and to learn about Japanese
(and Asian)
culture through baseball.

It is my sincere hope that once you learn a bit about
what we're about here that you will join the community of
contributors.